diff options
| -rw-r--r-- | drivers/net/phy/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/net/phy/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/phy/ste10Xp.c | 137 |
3 files changed, 144 insertions, 0 deletions
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index a1938e18cb6..0b368dc49ae 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -71,6 +71,12 @@ config NATIONAL_PHY ---help--- Currently supports the DP83865 PHY. +config STE10XP + depends on PHYLIB + tristate "Driver for STMicroelectronics STe10Xp PHYs" + ---help--- + This is the driver for the STe100p and STe101p PHYs. + config FIXED_PHY bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" depends on PHYLIB=y diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index eba495453ae..67959c9d4ca 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -17,3 +17,4 @@ obj-$(CONFIG_FIXED_PHY) += fixed.o obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o obj-$(CONFIG_NATIONAL_PHY) += national.o +obj-$(CONFIG_STE10XP) += ste10Xp.o diff --git a/drivers/net/phy/ste10Xp.c b/drivers/net/phy/ste10Xp.c new file mode 100644 index 00000000000..6bdb0d53aaf --- /dev/null +++ b/drivers/net/phy/ste10Xp.c @@ -0,0 +1,137 @@ +/* + * drivers/net/phy/ste10Xp.c + * + * Driver for STMicroelectronics STe10Xp PHYs + * + * Author: Giuseppe Cavallaro <peppe.cavallaro@st.com> + * + * Copyright (c) 2008 STMicroelectronics Limited + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/netdevice.h> +#include <linux/ethtool.h> +#include <linux/mii.h> +#include <linux/phy.h> + +#define MII_XCIIS 0x11 /* Configuration Info IRQ & Status Reg */ +#define MII_XIE 0x12 /* Interrupt Enable Register */ +#define MII_XIE_DEFAULT_MASK 0x0070 /* ANE complete, Remote Fault, Link Down */ + +#define STE101P_PHY_ID 0x00061c50 +#define STE100P_PHY_ID 0x1c040011 + +static int ste10Xp_config_init(struct phy_device *phydev) +{ + int value, err; + + /* Software Reset PHY */ + value = phy_read(phydev, MII_BMCR); + if (value < 0) + return value; + + value |= BMCR_RESET; + err = phy_write(phydev, MII_BMCR, value); + if (err < 0) + return err; + + do { + value = phy_read(phydev, MII_BMCR); + } while (value & BMCR_RESET); + + return 0; +} + +static int ste10Xp_config_intr(struct phy_device *phydev) +{ + int err, value; + + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { + /* Enable all STe101P interrupts (PR12) */ + err = phy_write(phydev, MII_XIE, MII_XIE_DEFAULT_MASK); + /* clear any pending interrupts */ + if (err == 0) { + value = phy_read(phydev, MII_XCIIS); + if (value < 0) + err = value; + } + } else + err = phy_write(phydev, MII_XIE, 0); + + return err; +} + +static int ste10Xp_ack_interrupt(struct phy_device *phydev) +{ + int err = phy_read(phydev, MII_XCIIS); + if (err < 0) + return err; + + return 0; +} + +static struct phy_driver ste101p_pdriver = { + .phy_id = STE101P_PHY_ID, + .phy_id_mask = 0xfffffff0, + .name = "STe101p", + .features = PHY_BASIC_FEATURES | SUPPORTED_Pause, + .flags = PHY_HAS_INTERRUPT, + .config_init = ste10Xp_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = ste10Xp_ack_interrupt, + .config_intr = ste10Xp_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = {.owner = THIS_MODULE,} +}; + +static struct phy_driver ste100p_pdriver = { + .phy_id = STE100P_PHY_ID, + .phy_id_mask = 0xffffffff, + .name = "STe100p", + .features = PHY_BASIC_FEATURES | SUPPORTED_Pause, + .flags = PHY_HAS_INTERRUPT, + .config_init = ste10Xp_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = ste10Xp_ack_interrupt, + .config_intr = ste10Xp_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = {.owner = THIS_MODULE,} +}; + +static int __init ste10Xp_init(void) +{ + int retval; + + retval = phy_driver_register(&ste100p_pdriver); + if (retval < 0) + return retval; + return phy_driver_register(&ste101p_pdriver); +} + +static void __exit ste10Xp_exit(void) +{ + phy_driver_unregister(&ste100p_pdriver); + phy_driver_unregister(&ste101p_pdriver); +} + +module_init(ste10Xp_init); +module_exit(ste10Xp_exit); + +MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver"); +MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>"); +MODULE_LICENSE("GPL"); |